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Lexus Owners Club > Lexus Models > Lexus IS200 / Lexus IS300 / SPORTCROSS > Engine & Transmission
petejenkin
Ive found a place that can powder coat all my Alloy Engine Parts, I figure this will be better than polishing as it would mean loads of maintenance otherwise.

What I need to know chaps, is what is the approximate maximum surface temperature of the cam cover ? The reason is that the powder coating is cured at around 180 - 200 degrees C, and that after curing, the coating can start to break down if its temperature raises to the cure temperature again.

As blue is my chosen second colour, I think my alloy would be nice in a shade of blue, dont you think.

I only found out last night that the chap who lives across the road from me does it at his workshop, and anodises bolts and anything else.....lucky me msn-wink.gif
Rob
mmmm think that u might be pushing it a bit, ill be honest i dont know the temp of the head, but do think it will be near the range u have given. ill see what our digi themometers go upto and let u know.
Zee007
MY Exhaust Gas Temp Gauge reads up to 600 degrees C (plugged into manifold).... Not what you asked for, but gives you an idea...
Monster-Mat
QUOTE(Zee007 @ Jul 20 2004, 11:08 AM)
MY Exhaust Gas Temp Gauge reads up to 600 degrees C (plugged into manifold).... Not what you asked for, but gives you an idea...

lamo.gif ............

the rocker cover wont get that hot zee...............
tdiplc
Hard anodising would be a better solution smile.gif
TheDon
I think that it would be unadvisable to heat the head up to those temps unless you were willing to have them jigged and re-machined. Might as well just have it sprayed properly or as was said b4 hard anodised.

Its the same with alloy wheels, so many cowboys offer powder coating but over heat the wheels causing hairline fractures and then shattered wheels when you hit sumfin.
petejenkin
The curing process for Powder coating takes place between 170 0 210 Degrees C and takes only a short time. Most Alloy should be OK with this if it is cooled in the right manner.
TheDon
BUT DO YA WANNA RUN THE RISK!!

i mean how much is it gonna cost to put it right.
there are lots of cowboy powder coaters out there thats all
BESTY
as soon as my part is ready pete i`ll get it off to ye for that polishing touch you have mate msn-wink.gif
petejenkin
QUOTE(TheDon @ Aug 4 2004, 12:37 PM)
BUT DO YA WANNA RUN THE RISK!!

i mean how much is it gonna cost to put it right.
there are lots of cowboy powder coaters out there thats all

I shall be doing my own stuff first just to make sure.

Ive just spent near on 9k on powder coating, anodising and chroming facilities, and hope that we wont be labelled as cowboys. Im a ISO9001 Registered company and I won the small business awards this year, so cowboy doesnt really enter into my vocabulary. msn-wink.gif
BESTY
QUOTE(petejenkin @ Aug 4 2004, 03:50 PM)
QUOTE(TheDon @ Aug 4 2004, 12:37 PM)
BUT DO YA WANNA RUN THE RISK!!

i mean how much is it gonna cost to put it right.
there are lots of cowboy powder coaters out there thats all

I shall be doing my own stuff first just to make sure.

Ive just spent near on 9k on powder coating, anodising and chroming facilities, and hope that we wont be labelled as cowboys. Im a ISO9001 Registered company and I won the small business awards this year, so cowboy doesnt really enter into my vocabulary. msn-wink.gif

ye ha wip my crack laugh.gif
Scorpion
Cozzies have em p/coated so im sure it'll be o.k on an IS.
petejenkin
Here are pics of a few of the engine parts Im polishing. I shall post pics of the powder coated stuff and the anodisedstuff when Ive done them.

Fuel Rail degreased

Fuel Rail with Stage 2 Polish

Thermostat Housing

Throttle Body Part 1

Throttle Body Part different Angle
TheDon
QUOTE(BESTY @ Aug 4 2004, 04:09 PM)
QUOTE(petejenkin @ Aug 4 2004, 03:50 PM)
QUOTE(TheDon @ Aug 4 2004, 12:37 PM)
BUT DO YA WANNA RUN THE RISK!!

i mean how much is it gonna cost to put it right.
there are lots of cowboy powder coaters out there thats all

I shall be doing my own stuff first just to make sure.

Ive just spent near on 9k on powder coating, anodising and chroming facilities, and hope that we wont be labelled as cowboys. Im a ISO9001 Registered company and I won the small business awards this year, so cowboy doesnt really enter into my vocabulary. msn-wink.gif

ye ha wip my crack laugh.gif

thats good to hear. my uncle owns a extremely large engineering company that has a £4million powdercoating facility. so i have spoken with him many times about material suitability.

And the fact that i studied engineering for well over 3 years and watched materials warp under extreme heats under various conditions, i just thought i would add my pennys worth.

Good to know your not a cowboy, too many of them out there.
Rob
QUOTE(petejenkin @ Aug 5 2004, 10:19 AM)
Here are pics of a few of the engine parts Im polishing. I shall post pics of the powder coated stuff and the anodisedstuff when Ive done them.

Fuel Rail degreased

Fuel Rail with Stage 2 Polish

Thermostat Housing

Throttle Body Part 1

Throttle Body Part different Angle

the piccys dont work pete
hogie
I think it would look very nice.
To get the full effect discard the bonnet to enable max air cooling of all the anodised covers.
By doing this you will also enable everyone to see your pride and joy as well as the service station attendants you ask to check your oil every 50 miles or so.
The bonnet may be worth a quid or two at Steptoe and Son which will offset your anodising costs.
Perhaps if you sliced the roof of it would also give a beter view of the leather upholstery from outside the vehicle and give you another three or four quid in scrap.
If this doesnt succeed get a Holden Import from Aus.
Cheers, Bri.
ProLex-UK
QUOTE(hogie @ Oct 27 2004, 08:18 AM)
I think it would look very nice.
To get the full effect discard the bonnet to enable max air cooling of all the anodised covers.
By doing this you will also enable everyone to see your pride and joy as well as the service station attendants you ask to check your oil every 50 miles or so.
The bonnet may be worth a quid or two at Steptoe and Son which will offset your anodising costs.
Perhaps if you sliced the roof of it would also give a beter view of the leather upholstery from outside the vehicle and give you another three or four quid in scrap.
If this doesnt succeed get a Holden Import from Aus.
Cheers, Bri.

WTF ?
petejenkin
QUOTE(ProLex-UK @ Oct 27 2004, 08:35 AM)
QUOTE(hogie @ Oct 27 2004, 08:18 AM)
I think it would look very nice.
To get the full effect discard the bonnet to enable max air cooling of all the anodised covers.
By doing this you will also enable everyone to see your pride and joy as well as the service station attendants you ask to check your oil every 50 miles or so.
The bonnet may be worth a quid or two at Steptoe and Son which will offset your anodising costs.
Perhaps if you sliced the roof of it would also give a beter view of the leather upholstery from outside the vehicle and give you another three or four quid in scrap.
If this doesnt succeed get a Holden Import from Aus.
Cheers, Bri.

WTF ?

WTF indeed?

Good idea though - now wheres my grinder whistling.gif
Fargo
you know pete, you can get high temp powder coat..
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